Wine/Proton game segfaults (e.g. Diablo IV) produced multi-GB cores that
systemd-coredump spent minutes compressing to disk, pinning the CPU and
freezing the desktop. Cap ProcessSizeMax/ExternalSizeMax at 1G (oversized
cores logged but skipped) and MaxUse at 2G to bound the store.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
